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<div class="title">qwt_arrow_button.cpp</div>  </div>
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<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Qwt Widget Library</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (C) 1997   Josef Wilgen</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Copyright (C) 2002   Uwe Rathmann</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * This library is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *****************************************************************************/</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160; </div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#include &quot;qwt_arrow_button.h&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor">#include &quot;qwt.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160; </div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &lt;qpainter.h&gt;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &lt;qstyle.h&gt;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &lt;qstyleoption.h&gt;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#include &lt;qevent.h&gt;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160; </div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> MaxNum = 3;</div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> Margin = 2;</div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> Spacing = 1;</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160; </div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="keyword">class </span>QwtArrowButton::PrivateData</div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;{</div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;    <span class="keywordtype">int</span> <a class="code" href="class_qwt_arrow_button.html#a680ecdc99fdc5971ddfabc643e1ed52a">num</a>;</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;    Qt::ArrowType <a class="code" href="class_qwt_arrow_button.html#a7e9b1a97e6f6281aee4ada6293931d90">arrowType</a>;</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;};</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160; </div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="keyword">static</span> QStyleOptionButton styleOpt( <span class="keyword">const</span> <a class="code" href="class_qwt_arrow_button.html">QwtArrowButton</a>* btn )</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;{</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;    QStyleOptionButton option;</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;    option.initFrom( btn );</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;    option.features = QStyleOptionButton::None;</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;    <span class="keywordflow">if</span> ( btn-&gt;isFlat() )</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;        option.features |= QStyleOptionButton::Flat;</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;    <span class="keywordflow">if</span> ( btn-&gt;menu() )</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;        option.features |= QStyleOptionButton::HasMenu;</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    <span class="keywordflow">if</span> ( btn-&gt;autoDefault() || btn-&gt;isDefault() )</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;        option.features |= QStyleOptionButton::AutoDefaultButton;</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;    <span class="keywordflow">if</span> ( btn-&gt;isDefault() )</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;        option.features |= QStyleOptionButton::DefaultButton;</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;    <span class="keywordflow">if</span> ( btn-&gt;isDown() )</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;        option.state |= QStyle::State_Sunken;</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    <span class="keywordflow">if</span> ( !btn-&gt;isFlat() &amp;&amp; !btn-&gt;isDown() )</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;        option.state |= QStyle::State_Raised;</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160; </div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;    <span class="keywordflow">return</span> option;</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;}</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160; </div>
<div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="class_qwt_arrow_button.html#ab0ad5aefdd56db10976796be717671e9">   55</a></span>&#160;<a class="code" href="class_qwt_arrow_button.html#ab0ad5aefdd56db10976796be717671e9">QwtArrowButton::QwtArrowButton</a>( <span class="keywordtype">int</span> num, Qt::ArrowType arrowType, QWidget* parent )</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    : QPushButton( parent )</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;{</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    m_data = <span class="keyword">new</span> PrivateData;</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;    m_data-&gt;num = qBound( 1, <a class="code" href="class_qwt_arrow_button.html#a680ecdc99fdc5971ddfabc643e1ed52a">num</a>, MaxNum );</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    m_data-&gt;arrowType = <a class="code" href="class_qwt_arrow_button.html#a7e9b1a97e6f6281aee4ada6293931d90">arrowType</a>;</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160; </div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    setAutoRepeat( <span class="keyword">true</span> );</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    setAutoDefault( <span class="keyword">false</span> );</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160; </div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    <span class="keywordflow">switch</span> ( m_data-&gt;arrowType )</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    {</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;        <span class="keywordflow">case</span> Qt::LeftArrow:</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;        <span class="keywordflow">case</span> Qt::RightArrow:</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;            setSizePolicy( QSizePolicy::Expanding,</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;                QSizePolicy::Fixed );</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;        <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;            setSizePolicy( QSizePolicy::Fixed,</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;                QSizePolicy::Expanding );</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    }</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;}</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160; </div>
<div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="class_qwt_arrow_button.html#a506ab071fa7ee92928ace7dcea774a73">   79</a></span>&#160;<a class="code" href="class_qwt_arrow_button.html#a506ab071fa7ee92928ace7dcea774a73">QwtArrowButton::~QwtArrowButton</a>()</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;{</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;    <span class="keyword">delete</span> m_data;</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    m_data = NULL;</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;}</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160; </div>
<div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="class_qwt_arrow_button.html#a7e9b1a97e6f6281aee4ada6293931d90">   88</a></span>&#160;Qt::ArrowType <a class="code" href="class_qwt_arrow_button.html#a7e9b1a97e6f6281aee4ada6293931d90">QwtArrowButton::arrowType</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;arrowType;</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;}</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160; </div>
<div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="class_qwt_arrow_button.html#a680ecdc99fdc5971ddfabc643e1ed52a">   96</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="class_qwt_arrow_button.html#a680ecdc99fdc5971ddfabc643e1ed52a">QwtArrowButton::num</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;num;</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;}</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160; </div>
<div class="line"><a name="l00104"></a><span class="lineno"><a class="line" href="class_qwt_arrow_button.html#a5f4449198f900946579c843ff56e0a5a">  104</a></span>&#160;QRect <a class="code" href="class_qwt_arrow_button.html#a5f4449198f900946579c843ff56e0a5a">QwtArrowButton::labelRect</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> m = Margin;</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160; </div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    QRect r = rect();</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;    r.setRect( r.x() + m, r.y() + m,</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;        r.width() - 2 * m, r.height() - 2 * m );</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160; </div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;    <span class="keywordflow">if</span> ( isDown() )</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;    {</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;        QStyleOptionButton option = styleOpt( <span class="keyword">this</span> );</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> ph = style()-&gt;pixelMetric(</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;            QStyle::PM_ButtonShiftHorizontal, &amp;option, <span class="keyword">this</span> );</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> pv = style()-&gt;pixelMetric(</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;            QStyle::PM_ButtonShiftVertical, &amp;option, <span class="keyword">this</span> );</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160; </div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;        r.translate( ph, pv );</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    }</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160; </div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    <span class="keywordflow">return</span> r;</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;}</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160; </div>
<div class="line"><a name="l00130"></a><span class="lineno"><a class="line" href="class_qwt_arrow_button.html#a65e03e4c642b7b05d81456e5015c7a4f">  130</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_arrow_button.html#a65e03e4c642b7b05d81456e5015c7a4f">QwtArrowButton::paintEvent</a>( QPaintEvent* event )</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;{</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    QPushButton::paintEvent( event );</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    QPainter painter( <span class="keyword">this</span> );</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    <a class="code" href="class_qwt_arrow_button.html#afa3b1930046c73aa764caced4aa09c45">drawButtonLabel</a>( &amp;painter );</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;}</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160; </div>
<div class="line"><a name="l00143"></a><span class="lineno"><a class="line" href="class_qwt_arrow_button.html#afa3b1930046c73aa764caced4aa09c45">  143</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_arrow_button.html#afa3b1930046c73aa764caced4aa09c45">QwtArrowButton::drawButtonLabel</a>( QPainter* painter )</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;{</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">bool</span> isVertical = m_data-&gt;arrowType == Qt::UpArrow ||</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;        m_data-&gt;arrowType == Qt::DownArrow;</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160; </div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    <span class="keyword">const</span> QRect r = <a class="code" href="class_qwt_arrow_button.html#a5f4449198f900946579c843ff56e0a5a">labelRect</a>();</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;    QSize boundingSize = <a class="code" href="class_qwt_arrow_button.html#a5f4449198f900946579c843ff56e0a5a">labelRect</a>().size();</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;    <span class="keywordflow">if</span> ( isVertical )</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;        boundingSize.transpose();</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160; </div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> w =</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;        ( boundingSize.width() - ( MaxNum - 1 ) * Spacing ) / MaxNum;</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160; </div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    QSize arrow = <a class="code" href="class_qwt_arrow_button.html#a018b7b1a6c1e2b74f8edcb0421310cfa">arrowSize</a>( Qt::RightArrow,</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;        QSize( w, boundingSize.height() ) );</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160; </div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;    <span class="keywordflow">if</span> ( isVertical )</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;        arrow.transpose();</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160; </div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;    QRect contentsSize; <span class="comment">// aligned rect where to paint all arrows</span></div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;arrowType == Qt::LeftArrow || m_data-&gt;arrowType == Qt::RightArrow )</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;    {</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;        contentsSize.setWidth( m_data-&gt;num * arrow.width()</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;            + ( m_data-&gt;num - 1 ) * Spacing );</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;        contentsSize.setHeight( arrow.height() );</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;    }</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;    {</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;        contentsSize.setWidth( arrow.width() );</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;        contentsSize.setHeight( m_data-&gt;num * arrow.height()</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;            + ( m_data-&gt;num - 1 ) * Spacing );</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;    }</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160; </div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;    QRect arrowRect( contentsSize );</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;    arrowRect.moveCenter( r.center() );</div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;    arrowRect.setSize( arrow );</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160; </div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;    painter-&gt;save();</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;    <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i &lt; m_data-&gt;num; i++ )</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;    {</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;        <a class="code" href="class_qwt_arrow_button.html#a54c272f2ca19627613415fb5e0bf0b88">drawArrow</a>( painter, arrowRect, m_data-&gt;arrowType );</div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160; </div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;        <span class="keywordtype">int</span> dx = 0;</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;        <span class="keywordtype">int</span> dy = 0;</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160; </div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;        <span class="keywordflow">if</span> ( isVertical )</div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;            dy = arrow.height() + Spacing;</div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;        <span class="keywordflow">else</span></div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;            dx = arrow.width() + Spacing;</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160; </div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;        arrowRect.translate( dx, dy );</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;    }</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;    painter-&gt;restore();</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160; </div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;    <span class="keywordflow">if</span> ( hasFocus() )</div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;    {</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;        QStyleOptionFocusRect option;</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;        option.initFrom( <span class="keyword">this</span> );</div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;        option.backgroundColor = palette().color( QPalette::Window );</div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160; </div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;        style()-&gt;drawPrimitive( QStyle::PE_FrameFocusRect,</div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;            &amp;option, painter, <span class="keyword">this</span> );</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;    }</div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;}</div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160; </div>
<div class="line"><a name="l00215"></a><span class="lineno"><a class="line" href="class_qwt_arrow_button.html#a54c272f2ca19627613415fb5e0bf0b88">  215</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_arrow_button.html#a54c272f2ca19627613415fb5e0bf0b88">QwtArrowButton::drawArrow</a>( QPainter* painter,</div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;    <span class="keyword">const</span> QRect&amp; r, Qt::ArrowType arrowType )<span class="keyword"> const</span></div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;    QPolygon pa( 3 );</div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160; </div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;    <span class="keywordflow">switch</span> ( <a class="code" href="class_qwt_arrow_button.html#a7e9b1a97e6f6281aee4ada6293931d90">arrowType</a> )</div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;    {</div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;        <span class="keywordflow">case</span> Qt::UpArrow:</div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;            pa.setPoint( 0, r.bottomLeft() );</div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;            pa.setPoint( 1, r.bottomRight() );</div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;            pa.setPoint( 2, r.center().x(), r.top() );</div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;        <span class="keywordflow">case</span> Qt::DownArrow:</div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;            pa.setPoint( 0, r.topLeft() );</div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;            pa.setPoint( 1, r.topRight() );</div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;            pa.setPoint( 2, r.center().x(), r.bottom() );</div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;        <span class="keywordflow">case</span> Qt::RightArrow:</div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;            pa.setPoint( 0, r.topLeft() );</div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;            pa.setPoint( 1, r.bottomLeft() );</div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;            pa.setPoint( 2, r.right(), r.center().y() );</div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;        <span class="keywordflow">case</span> Qt::LeftArrow:</div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;            pa.setPoint( 0, r.topRight() );</div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;            pa.setPoint( 1, r.bottomRight() );</div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;            pa.setPoint( 2, r.left(), r.center().y() );</div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;        <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;    }</div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160; </div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;    painter-&gt;save();</div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160; </div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;    painter-&gt;setRenderHint( QPainter::Antialiasing, <span class="keyword">true</span> );</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;    painter-&gt;setPen( Qt::NoPen );</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;    painter-&gt;setBrush( palette().brush( QPalette::ButtonText ) );</div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;    painter-&gt;drawPolygon( pa );</div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160; </div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;    painter-&gt;restore();</div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;}</div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160; </div>
<div class="line"><a name="l00259"></a><span class="lineno"><a class="line" href="class_qwt_arrow_button.html#ad5a3219f323182a3d393b1577f5d75f9">  259</a></span>&#160;QSize <a class="code" href="class_qwt_arrow_button.html#ad5a3219f323182a3d393b1577f5d75f9">QwtArrowButton::sizeHint</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;    <span class="keyword">const</span> QSize hint = <a class="code" href="class_qwt_arrow_button.html#abd6cda5f2bafeff8ca8438ad1ff43776">minimumSizeHint</a>();</div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;    <span class="keywordflow">return</span> qwtExpandedToGlobalStrut( hint );</div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;}</div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160; </div>
<div class="line"><a name="l00268"></a><span class="lineno"><a class="line" href="class_qwt_arrow_button.html#abd6cda5f2bafeff8ca8438ad1ff43776">  268</a></span>&#160;QSize <a class="code" href="class_qwt_arrow_button.html#abd6cda5f2bafeff8ca8438ad1ff43776">QwtArrowButton::minimumSizeHint</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;    <span class="keyword">const</span> QSize asz = <a class="code" href="class_qwt_arrow_button.html#a018b7b1a6c1e2b74f8edcb0421310cfa">arrowSize</a>( Qt::RightArrow, QSize() );</div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160; </div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;    QSize sz(</div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;        2 * Margin + ( MaxNum - 1 ) * Spacing + MaxNum * asz.width(),</div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;        2 * Margin + asz.height()</div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;        );</div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160; </div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;arrowType == Qt::UpArrow || m_data-&gt;arrowType == Qt::DownArrow )</div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;        sz.transpose();</div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160; </div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;    QStyleOption styleOption;</div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;    styleOption.initFrom( <span class="keyword">this</span> );</div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160; </div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;    sz = style()-&gt;sizeFromContents( QStyle::CT_PushButton,</div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;        &amp;styleOption, sz, <span class="keyword">this</span> );</div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160; </div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;    <span class="keywordflow">return</span> sz;</div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;}</div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160; </div>
<div class="line"><a name="l00296"></a><span class="lineno"><a class="line" href="class_qwt_arrow_button.html#a018b7b1a6c1e2b74f8edcb0421310cfa">  296</a></span>&#160;QSize <a class="code" href="class_qwt_arrow_button.html#a018b7b1a6c1e2b74f8edcb0421310cfa">QwtArrowButton::arrowSize</a>( Qt::ArrowType arrowType,</div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;    <span class="keyword">const</span> QSize&amp; boundingSize )<span class="keyword"> const</span></div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;    QSize bs = boundingSize;</div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;    <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_arrow_button.html#a7e9b1a97e6f6281aee4ada6293931d90">arrowType</a> == Qt::UpArrow || <a class="code" href="class_qwt_arrow_button.html#a7e9b1a97e6f6281aee4ada6293931d90">arrowType</a> == Qt::DownArrow )</div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;        bs.transpose();</div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160; </div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> MinLen = 2;</div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;    <span class="keyword">const</span> QSize sz = bs.expandedTo(</div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;        QSize( MinLen, 2 * MinLen - 1 ) ); <span class="comment">// minimum</span></div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160; </div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;    <span class="keywordtype">int</span> w = sz.width();</div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;    <span class="keywordtype">int</span> h = 2 * w - 1;</div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160; </div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;    <span class="keywordflow">if</span> ( h &gt; sz.height() )</div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;    {</div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;        h = sz.height();</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;        w = ( h + 1 ) / 2;</div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;    }</div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160; </div>
<div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;    QSize arrSize( w, h );</div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;    <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_arrow_button.html#a7e9b1a97e6f6281aee4ada6293931d90">arrowType</a> == Qt::UpArrow || <a class="code" href="class_qwt_arrow_button.html#a7e9b1a97e6f6281aee4ada6293931d90">arrowType</a> == Qt::DownArrow )</div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;        arrSize.transpose();</div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160; </div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;    <span class="keywordflow">return</span> arrSize;</div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;}</div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160; </div>
<div class="line"><a name="l00326"></a><span class="lineno"><a class="line" href="class_qwt_arrow_button.html#a1b5b90cd3f72007d66cfb1e635eb62f8">  326</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_arrow_button.html#a1b5b90cd3f72007d66cfb1e635eb62f8">QwtArrowButton::keyPressEvent</a>( QKeyEvent* event )</div>
<div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;{</div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;    <span class="keywordflow">if</span> ( event-&gt;isAutoRepeat() &amp;&amp; event-&gt;key() == Qt::Key_Space )</div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;        Q_EMIT clicked();</div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160; </div>
<div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;    QPushButton::keyPressEvent( event );</div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;}</div>
<div class="ttc" id="aclass_qwt_arrow_button_html"><div class="ttname"><a href="class_qwt_arrow_button.html">QwtArrowButton</a></div><div class="ttdoc">Arrow Button.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__arrow__button_8h_source.html#l00023">qwt_arrow_button.h:24</a></div></div>
<div class="ttc" id="aclass_qwt_arrow_button_html_a018b7b1a6c1e2b74f8edcb0421310cfa"><div class="ttname"><a href="class_qwt_arrow_button.html#a018b7b1a6c1e2b74f8edcb0421310cfa">QwtArrowButton::arrowSize</a></div><div class="ttdeci">virtual QSize arrowSize(Qt::ArrowType, const QSize &amp;boundingSize) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__arrow__button_8cpp_source.html#l00296">qwt_arrow_button.cpp:296</a></div></div>
<div class="ttc" id="aclass_qwt_arrow_button_html_a1b5b90cd3f72007d66cfb1e635eb62f8"><div class="ttname"><a href="class_qwt_arrow_button.html#a1b5b90cd3f72007d66cfb1e635eb62f8">QwtArrowButton::keyPressEvent</a></div><div class="ttdeci">virtual void keyPressEvent(QKeyEvent *) override</div><div class="ttdoc">autoRepeat for the space keys</div><div class="ttdef"><b>Definition:</b> <a href="qwt__arrow__button_8cpp_source.html#l00326">qwt_arrow_button.cpp:326</a></div></div>
<div class="ttc" id="aclass_qwt_arrow_button_html_a506ab071fa7ee92928ace7dcea774a73"><div class="ttname"><a href="class_qwt_arrow_button.html#a506ab071fa7ee92928ace7dcea774a73">QwtArrowButton::~QwtArrowButton</a></div><div class="ttdeci">virtual ~QwtArrowButton()</div><div class="ttdoc">Destructor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__arrow__button_8cpp_source.html#l00079">qwt_arrow_button.cpp:79</a></div></div>
<div class="ttc" id="aclass_qwt_arrow_button_html_a54c272f2ca19627613415fb5e0bf0b88"><div class="ttname"><a href="class_qwt_arrow_button.html#a54c272f2ca19627613415fb5e0bf0b88">QwtArrowButton::drawArrow</a></div><div class="ttdeci">virtual void drawArrow(QPainter *, const QRect &amp;, Qt::ArrowType) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__arrow__button_8cpp_source.html#l00215">qwt_arrow_button.cpp:215</a></div></div>
<div class="ttc" id="aclass_qwt_arrow_button_html_a5f4449198f900946579c843ff56e0a5a"><div class="ttname"><a href="class_qwt_arrow_button.html#a5f4449198f900946579c843ff56e0a5a">QwtArrowButton::labelRect</a></div><div class="ttdeci">virtual QRect labelRect() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__arrow__button_8cpp_source.html#l00104">qwt_arrow_button.cpp:104</a></div></div>
<div class="ttc" id="aclass_qwt_arrow_button_html_a65e03e4c642b7b05d81456e5015c7a4f"><div class="ttname"><a href="class_qwt_arrow_button.html#a65e03e4c642b7b05d81456e5015c7a4f">QwtArrowButton::paintEvent</a></div><div class="ttdeci">virtual void paintEvent(QPaintEvent *) override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__arrow__button_8cpp_source.html#l00130">qwt_arrow_button.cpp:130</a></div></div>
<div class="ttc" id="aclass_qwt_arrow_button_html_a680ecdc99fdc5971ddfabc643e1ed52a"><div class="ttname"><a href="class_qwt_arrow_button.html#a680ecdc99fdc5971ddfabc643e1ed52a">QwtArrowButton::num</a></div><div class="ttdeci">int num() const</div><div class="ttdoc">The number of arrows.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__arrow__button_8cpp_source.html#l00096">qwt_arrow_button.cpp:96</a></div></div>
<div class="ttc" id="aclass_qwt_arrow_button_html_a7e9b1a97e6f6281aee4ada6293931d90"><div class="ttname"><a href="class_qwt_arrow_button.html#a7e9b1a97e6f6281aee4ada6293931d90">QwtArrowButton::arrowType</a></div><div class="ttdeci">Qt::ArrowType arrowType() const</div><div class="ttdoc">The direction of the arrows.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__arrow__button_8cpp_source.html#l00088">qwt_arrow_button.cpp:88</a></div></div>
<div class="ttc" id="aclass_qwt_arrow_button_html_ab0ad5aefdd56db10976796be717671e9"><div class="ttname"><a href="class_qwt_arrow_button.html#ab0ad5aefdd56db10976796be717671e9">QwtArrowButton::QwtArrowButton</a></div><div class="ttdeci">QwtArrowButton(int num, Qt::ArrowType, QWidget *parent=NULL)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__arrow__button_8cpp_source.html#l00055">qwt_arrow_button.cpp:55</a></div></div>
<div class="ttc" id="aclass_qwt_arrow_button_html_abd6cda5f2bafeff8ca8438ad1ff43776"><div class="ttname"><a href="class_qwt_arrow_button.html#abd6cda5f2bafeff8ca8438ad1ff43776">QwtArrowButton::minimumSizeHint</a></div><div class="ttdeci">virtual QSize minimumSizeHint() const override</div><div class="ttdoc">Return a minimum size hint.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__arrow__button_8cpp_source.html#l00268">qwt_arrow_button.cpp:268</a></div></div>
<div class="ttc" id="aclass_qwt_arrow_button_html_ad5a3219f323182a3d393b1577f5d75f9"><div class="ttname"><a href="class_qwt_arrow_button.html#ad5a3219f323182a3d393b1577f5d75f9">QwtArrowButton::sizeHint</a></div><div class="ttdeci">virtual QSize sizeHint() const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__arrow__button_8cpp_source.html#l00259">qwt_arrow_button.cpp:259</a></div></div>
<div class="ttc" id="aclass_qwt_arrow_button_html_afa3b1930046c73aa764caced4aa09c45"><div class="ttname"><a href="class_qwt_arrow_button.html#afa3b1930046c73aa764caced4aa09c45">QwtArrowButton::drawButtonLabel</a></div><div class="ttdeci">virtual void drawButtonLabel(QPainter *)</div><div class="ttdoc">Draw the button label.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__arrow__button_8cpp_source.html#l00143">qwt_arrow_button.cpp:143</a></div></div>
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